Water-jacketed flue



(No modex.)`

F. HABIGH. WATER JAGKETBD FLUB.

No. 587,309. Paten d Aug'. 3,1897.

UNITED STATES PATENT Prion.

FREDRIOK HABIOH, OF GRAND FORKS, NORTH DAKOTA.

l WATER-JACKETED FLUE.

SPECIFICATION forming part of Letters Patent No. 587,309, dated August 3, 1897.A

Application led October 20, 1896. Serial No. 609,411. (No model.)

To all whom, it rita/y concern:

Be it known that I, FREDRICK HABIcma citizen of the United States, residing at Grand Forks,in the county of Grand Forks and State of North Dakota, have invented certain new and useful Improvements in VVater-Jacketed Flues; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improvement in the nature of a waterjaeketed flue.

Asis well known, the water contained in the Water-tanks of railway water-stations is in cold weather kept sufcientlywarm tofprevent the same from freezing by the heat from a draft-ilue which is run through the tank. These tanks are usually constructed of wood. The draft-flue in some cases extends from a stove and in other cases from the fire-pot of a boiler,either of which is usually located in the closed apartment below the water-tank.

My invention while capable of a more extended use has for its especial object to provide a suitable water-jacket for preventing the iiues from igniting or setting tire to the floor or bottom of these railway-tanks through which they are passed.

To these ends my invention consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

The preferred form of my invention (shown with some parts broken away, and partly in central vertical section, showing an ordinary railway water-station with my invention applied thereto. Fig. 2 is an enlarged view, partly in perspective and partly in central vertical section, showing my improved waterjacket and the immediate lue connections thereto. Fig. 3 is a plan view of the parts shown in Fig. 3; and Fig. 4t is a detail view in plan, showing the clamping-ring used in connection with my improved water-jacket.

Referring to the parts of the water-station,

1 indicates the water-tank provided with a plank and timber bottom 2 and supported by the walls and timbers of an'under apartment 3.

4 indicates the boiler of an engine or pump located in the apartment 3 and provided with a draft-fine 5 6,which extends upward through the floor or bottom 2 of the tank l and also through the top of the same.

7 indicates the pivoted water-delivery spout used in lling the engine-tanks from the water-tank l, and 8 indicates the railway-track which passes the said station.

All of the above-mentioned parts with the exception of the draft-flue 5 6 are of the ordinary construction and require no further comments for the purpose of this case. It will be noted, however, that the tank l is partially iilled with water, as indicated at z.

Referring now to the application of my improved water-jacket, attention is iirst called to the fact that the liuc-sections 5 and 6 are united some little distance below the bottom 2 of the tank l by the engagement of screwthreads 5 ta cut, respectively, on the said flue-sections 5 and 6.

In the construction shown the water-jacket is' in the form of a cast cylinder A of considerably larger diameter than the flue-section 6.

At its upper end this jacket or cylinder A is provided with an outturned flange B, provided with bolt-holes O, and atits lower end is contracted and provided with internal screwthreads D. In order to place this jacket A in working position, the plank portion of the tank-bottom 2 is cut out to snugly iit and pass said cylinder A, and when said cylinder or jacket A is placed in working position its screw-threaded portion D is screwed onto the screw-threads 6a of the flue-section 6, thereby forming a water-tight joint therewith, and the flange B will rest upon the upper surface of said tank-bottom 2. In thus securing the parts together it will be understood, of course, that the screw-threaded portion D of the jacket A must be screwed onto the screwthreads 6l of the flue-sections 6 before the said screw-threads 6a are screwed into the screw-threads 5iL of the flue-section 5.

E indicates a clamping-ring provided with bolt-holes F. This clamping-ring E is adapted to t over the cylindrical jacket A and to be clamped against the under side of the plank portion of the tank-bottom 2 by means ISO of nutted bolts G, which are passed through the perforations F and perforations C of the clamping-ring E and ange B, respectively, and also through said plank bottom. In practice some suitable packing material (not shown) will usually be clamped between the ilange B and the planks oi' the tank-bottom 2. Vith this construction, as is obvious, all portions of the tank-bottom 2 are protected by the water-jacket from the ue, and hence all danger of the same being ignited or set on ire by the heat from the same is effectually prevented. Again, the Water contact with the flue is greatly increased by the water-jacket. The water which is constantly being heated in the annular chamber formed between the due and the water-jacket will, under the action of convection, continually rise to the top of the tank, while the cooler portions of the water will lower to keep said water-jacket filled.

As already indicated, my improved waterjacket is capable of more general use than that just specically described. For example, the same might be used as a water-jacket to a stove-pipe which is run through the ceiling of one room into another or through the roof of a building. In either of these cases the water-jacket should of course be kept filled with water. Vhen the water-jacket Iis placed in the floor of a room, it would serve another very desirable function, to Wit: It will cause the evaporation of a small amount of water into the room, sufficient to keep the air properly mjoistened. It will also be understood that various alterations in the details of construction above set forth may be made without departing from the spirit of my invention. j

IVhat I claim, and desire to secure by Letters Patent of the United Stat-es, is as follows:

l. The combination with a flue and the door or other part through which the same passes, of a water-jacket open at its upper end and supported from the floor, and connecting with the flue by a water-tight joint, at a point below the floor, substantially as described.

2. The combination with aWater-tank and a iiue passing upward through the same, of a water-jacket surrounding said Iiue where it passes through the bottom of said tank open at its upper end to the interior of said tank and depending therefrom to increase the water-heating surface of said Hue and to protect said tank-bottom, substantially as described.

3. The combination with a water-tank and a ue passing upward through the bottom of the same, of a water-jacket surrounding the iiue where it passes through the tank-bottom, which jacket is open to the tank at its upper end and forms a tight joint with the iiue at its lower end, below the floor, substantially as described.

4. The combination with the Water-tank, of the smoke-flue passing through the same and the water-jacket surrounding the said ue where it passes through the floor of said tank, which jacket is open to the tank at its upper end and is provided at its lower end with the contracted and internal-threaded portion, adapted to form a tight joint with the nue, below the floor, substantially as described.

In testimony whereof I aftix my signature in presence of two witnesses.

FREDRICK IIABICII.

lvitnesses:

O. E. NASH, F. II. MoDERMoN'r. 

